Home/CVE/Apple Multiple Products Buffer Overflow Vulnerability
CVE

CVE-2025-31277

Apple Multiple Products Buffer Overflow Vulnerability

The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

HIGH · CVSS 8.8 ⚠ CISA KEV EPSS 0.00253
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬢

Required Remediation

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

7
apple safari< 18.6
apple ipados< 18.6
apple iphone os< 18.6
apple macos>= 15.0 and < 15.6
apple tvos< 18.6
apple visionos< 2.6
apple watchos< 11.6
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · product-security@apple.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Jul 2025 · 12:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

22
suse-csafSUSE-SU-2026:1364-1
suse-csafopenSUSE-SU-2026:20518-1
suse-csafSUSE-SU-2026:21180-1
suse-csafSUSE-SU-2026:1139-1
suse-csafSUSE-SU-2026:1150-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2025/Aug/0Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2025/Jul/30Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2025/Jul/32Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2025/Jul/36Mailing ListThird Party Advisory
https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/Technical Description
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277US Government Resource
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